Cracked spoke Oz Allergertia
#1
Rennlist Member
Thread Starter
Cracked spoke Oz Allergertia
I drive my GT3 RS at autocross only and after 2 runs in the afternoon yesterday I was watering my tires to cool them down. I noticed a line on one of the spokes so I put some water on it and thought it would rub off. Nope. Very definite broken spoke. Easy decision not to continue. Anybody ever have that happen? I am thinking metal fatigue as those wheels were new in 2008. Going to junk the other rear just because it is not worth it.
#2
Burning Brakes
Been puttin' cold water on a hot wheel, I betcha…serves ye right! (J/K!)
If you have the other wheel magna-fluxed or dye-penetrant inspected and it shows no cracks you are good. Racing teams inspect this way regularly and don't throw anything away unless they see a crack. The crack may have started in an unusually large flaw that doesn't exist in the other wheel, so it might last many, many more years. But as you have decided, junking the other one and buying new is relative cheap insurance.
If you have the other wheel magna-fluxed or dye-penetrant inspected and it shows no cracks you are good. Racing teams inspect this way regularly and don't throw anything away unless they see a crack. The crack may have started in an unusually large flaw that doesn't exist in the other wheel, so it might last many, many more years. But as you have decided, junking the other one and buying new is relative cheap insurance.
#3
Rennlist Member
Thread Starter
Been puttin' cold water on a hot wheel, I betcha…serves ye right! (J/K!)
If you have the other wheel magna-fluxed or dye-penetrant inspected and it shows no cracks you are good. Racing teams inspect this way regularly and don't throw anything away unless they see a crack. The crack may have started in an unusually large flaw that doesn't exist in the other wheel, so it might last many, many more years. But as you have decided, junking the other one and buying new is relative cheap insurance.
If you have the other wheel magna-fluxed or dye-penetrant inspected and it shows no cracks you are good. Racing teams inspect this way regularly and don't throw anything away unless they see a crack. The crack may have started in an unusually large flaw that doesn't exist in the other wheel, so it might last many, many more years. But as you have decided, junking the other one and buying new is relative cheap insurance.
New wheels arrived a few hours ago and already have tires mounted. Gotta love having a Hunter tire changer in my garage.
#4
I had a rear wheel crack like that. The retailer, GMG, said it was due to them being recoated. They said the process of heating for curing the powder coat or paint(I don't know which was done as the prev owner had it done) weakens the aluminum.
Any idea how much use yours had on them?
Any idea how much use yours had on them?
#5
Rennlist Member
Thread Starter
I had a rear wheel crack like that. The retailer, GMG, said it was due to them being recoated. They said the process of heating for curing the powder coat or paint(I don't know which was done as the prev owner had it done) weakens the aluminum.
Any idea how much use yours had on them?
Any idea how much use yours had on them?
#6
Burning Brakes
Holy Smokes! And I thought I did a lot of events…
As for the wheel, you may be the first person I've ever heard of that ruined a wheel with thermal shock/temperature-delta-induced internal stress.
I understand the motivation. At Nats we were draping towels soaked in ice-water over our wheels on the hot day.
As for the wheel, you may be the first person I've ever heard of that ruined a wheel with thermal shock/temperature-delta-induced internal stress.
I understand the motivation. At Nats we were draping towels soaked in ice-water over our wheels on the hot day.
#7
Drifting
I spray icewater on my tires every event. At nats, I even sprayed down my exhaust, which seemed to help keep control heat soak into the rear-tires. My friends in STX were spraying down their wheels as well as tires.
I see people so squeamish about spraying, but if you think about it logically, these cars are designed to handle it. Come down a mountain, and your brakes will be glowing red no matter what time of year it is; if it can't take running through a big puddle of icy water, that's a huge design flaw. I can't recall anyone who's ever reported an issue from running through a puddle (water intrusion into electronics aside...).
Mechanical flaws happen. I suspect that's what happened here.
I see people so squeamish about spraying, but if you think about it logically, these cars are designed to handle it. Come down a mountain, and your brakes will be glowing red no matter what time of year it is; if it can't take running through a big puddle of icy water, that's a huge design flaw. I can't recall anyone who's ever reported an issue from running through a puddle (water intrusion into electronics aside...).
Mechanical flaws happen. I suspect that's what happened here.
Trending Topics
#8
Rennlist Member
Thread Starter
I spray icewater on my tires every event. At nats, I even sprayed down my exhaust, which seemed to help keep control heat soak into the rear-tires. My friends in STX were spraying down their wheels as well as tires.
I see people so squeamish about spraying, but if you think about it logically, these cars are designed to handle it. Come down a mountain, and your brakes will be glowing red no matter what time of year it is; if it can't take running through a big puddle of icy water, that's a huge design flaw. I can't recall anyone who's ever reported an issue from running through a puddle (water intrusion into electronics aside...).
Mechanical flaws happen. I suspect that's what happened here.
I see people so squeamish about spraying, but if you think about it logically, these cars are designed to handle it. Come down a mountain, and your brakes will be glowing red no matter what time of year it is; if it can't take running through a big puddle of icy water, that's a huge design flaw. I can't recall anyone who's ever reported an issue from running through a puddle (water intrusion into electronics aside...).
Mechanical flaws happen. I suspect that's what happened here.
Current plan is to check each wheel in the morning when adjusting pressures, and keep an eye on them at each pressure check. It would have been very $$$ if it broke during a run, not to mention the huge time delay.
Not cutting the spoke out though. The 18s are just about the right diameter for the base of a bar stool. Weld 5 castor sockets on and just need a post and seat.
#11
Former Vendor
Join Date: Feb 2008
Location: New York
Posts: 289
Likes: 0
Received 0 Likes
on
0 Posts
#13
Rennlist Member
Thread Starter
I said uncomfortably hot. 300 degrees would leave the skin of my hand there. And the paint burning. Saw that once. But not on my car.
#14
Rennlist Member
Thread Starter
For sure it is flex. The barrels of my front wheels are scraped from flex. I was supposed to have 3mm spacers with my setup (per Rad). Bill only had 3mm spacers and that left me with .020 clearance from barrel to caliper. Even though the front is light it still made a lot of noise on sweepers. Even with the 5mm spacers a small stone sometimes gets caught and make a very un natural noise.